glibc/grp/grp.h
Ulrich Drepper a18f587da5 update from main archive 961206
Sat Dec  7 03:24:36 1996  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Discard error message from test in test for
	bash-2.0.

	* io/getpw.c: Don't apply getcwd on user supplied buffer.
	Instead always use temporary buffer and only copy the result.
	Patch by HJ Lu.
	* stdlib/canonicalize.c: Likewise.

	* libio/fileops.c: Change comments according to libg++2.8b5.
	* libio/iosetvbuf.c: Follow change in libg++-2.8b5 to clear
	unbuffered flag.
	Reported by HJ Lu.

	* manual/nss.texi: Correct prototypes.

	* misc/syslog.c: Make reentrant.  Catch SIGPIPE signal to prevent
	crash if syslog daemon is restarted.

	* stdlib/rand_r.c: New file.  Implementation of POSIX.2 function
	rand_r.
	* stdlib/Makefile (routines): Add rand_r.

	* sysdeps/stub/libc-lock.h: Define __libc_lock_trylock and
	__libc_mutex_lock.

	* configure.in: Add --disable-sanity-check option.
	* sysdeps/unix/sysv/linux/configure.in: If linuxthreads or
	des-crypt are not available and --disbale-sanity-check is not
	given abort with a message.

Thu Dec  5 19:19:53 1996  Richard Henderson  <rth@tamu.edu>

	* posix/glob.c: Tests against STDC_HEADERS should also test
	__GNU_LIBRARY__.

Thu Dec  5 16:20:55 1996  Ulrich Drepper  <drepper@cygnus.com>

	* misc/err.c (vwarn): Set errno again before using %m format.

Thu Dec  5 10:14:05 1996  Andreas Jaeger  <aj@arthur.pfalz.de>

	* grp/grp.h: Add declaration of __getgrent_r.

	* io/fts.c (fts_build): Remove "register" from variables dirbuf
	and dp since their address is needed.

	* sysdeps/posix/getcwd.c (__getcwd): Remove "register" from
	variable d since d's address is needed.

	* misc/tst-dirname.c (main): Provide prototype.
	* misc/ioctltst.c (main): Dito.

	* Makefile: Add gnu/lib-names.h to install-others before including
	Makerules.

Wed Dec  4 16:00:09 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sys/socketvar.h: New file.  Simply use
	<sys/socket.h>.
	* sysdeps/unix/sysv/linux/Dist: Add sys/socketvar.h.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=inet)]: Add
	sys/socketvar.h to sysdep_headers.

	since the value might be outside the range of the `long int'.
1996-12-07 03:30:25 +00:00

156 lines
4.9 KiB
C

/* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* POSIX Standard: 9.2.1 Group Database Access <grp.h>
*/
#ifndef _GRP_H
#define _GRP_H 1
#include <features.h>
__BEGIN_DECLS
#include <gnu/types.h>
#define __need_size_t
#include <stddef.h>
#define __need_size_t
#include <stddef.h>
/* The group structure. */
struct group
{
char *gr_name; /* Group name. */
char *gr_passwd; /* Password. */
__gid_t gr_gid; /* Group ID. */
char **gr_mem; /* Member list. */
};
#if defined(__USE_SVID) || defined(__USE_GNU)
#define __need_FILE
#include <stdio.h>
#endif
#ifdef __USE_GNU
/* Return a new stream open on the group file. */
extern FILE *__grpopen __P ((void));
/* Read a group entry from STREAM, filling in G.
Return the `struct group' of G if successful, NULL on failure. */
extern struct group *__grpread __P ((FILE *__stream, __ptr_t __g));
/* Return a chunk of memory containing pre-initialized data for __grpread. */
extern __ptr_t __grpalloc __P ((void));
/* Scan the group file, filling in G, until SELECTOR returns nonzero for an
entry. Return the `struct group' of G if successful, NULL on failure. */
extern struct group *__grpscan __P ((__ptr_t *__p,
int (*__selector) (struct group *)));
#endif
#if defined(__USE_SVID) || defined (__USE_BSD) || defined(__USE_XOPEN_EXTENDED)
/* Rewind the group-file stream. */
extern void setgrent __P ((void));
/* Close the group-file stream. */
extern void endgrent __P ((void));
/* Read an entry from the group-file stream, opening it if necessary. */
extern struct group *getgrent __P ((void));
#endif
#ifdef __USE_SVID
/* Read a group entry from STREAM. */
extern struct group *fgetgrent __P ((FILE *__stream));
#endif
/* Search for an entry with a matching group ID. */
extern struct group *getgrgid __P ((__gid_t __gid));
/* Search for an entry with a matching group name. */
extern struct group *getgrnam __P ((__const char *__name));
#ifdef __USE_REENTRANT
/* Reasonable value for the buffer sized used in the reentrant
functions below. But better use `sysconf'. */
#define NSS_BUFLEN_GROUP 1024
/* Reentrant versions of some of the functions above.
PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
The interface may change in later versions of this library. But
the interface is designed following the principals used for the
other reentrant functions so the chances are good this is what the
POSIX people would choose. */
#if defined(__USE_SVID) || defined (__USE_BSD) || defined(__USE_XOPEN_EXTENDED)
extern int __getgrent_r __P ((struct group *__resultbuf, char *buffer,
size_t __buflen, struct group **__result));
extern int getgrent_r __P ((struct group *__resultbuf, char *buffer,
size_t __buflen, struct group **__result));
#endif
/* Search for an entry with a matching group ID. */
extern int getgrgid_r __P ((__gid_t __gid, struct group *__resultbuf,
char *buffer, size_t __buflen,
struct group **__result));
/* Search for an entry with a matching group name. */
extern int getgrnam_r __P ((__const char *__name, struct group *__resultbuf,
char *buffer, size_t __buflen,
struct group **__result));
#ifdef __USE_SVID
/* Read a group entry from STREAM. This function is not standardized
an probably never will. */
extern int __fgetgrent_r __P ((FILE * __stream, struct group *__resultbuf,
char *buffer, size_t __buflen,
struct group **__result));
extern int fgetgrent_r __P ((FILE * __stream, struct group *__resultbuf,
char *buffer, size_t __buflen,
struct group **__result));
#endif
#endif /* reentrant */
#ifdef __USE_BSD
#define __need_size_t
#include <stddef.h>
/* Set the group set for the current user to GROUPS (N of them). */
extern int setgroups __P ((size_t __n, __const __gid_t *__groups));
/* Initialize the group set for the current user
by reading the group database and using all groups
of which USER is a member. Also include GROUP. */
extern int initgroups __P ((__const char *__user, __gid_t __group));
#endif /* Use BSD. */
__END_DECLS
#endif /* grp.h */